Rechargeable & Long Cycle Life
The Nickel Metal Hydride (NiMH) cell absorbs hydrogen in the metal alloy makeup of its negative electrode during charge. As the cell is discharged, the metal alloy releases hydrogen to form water. The use of the metal alloy is the underlying reason for the high energy density of the NiMH cell compared to other chemistries. NiMH batteries have a long cycle life and good storage characteristics.
Furthermore, the battery can be recharged at any time without experiencing voltage depression (or memory effect). Most importantly, the NiMH battery is an environmentally friendly product.
- Over 55 Standard Cells
- Specialized Cells Available
- Standard Series
- High Current Capable Series
- High Temperature Capable Series
- Multiple Form Factors
- Cylindrical Form Factor
- Prismatic Form Factor
- Button/Coin Form Factor
| Typical Performance Characteristics of Nickel Metal Hydride Batteries | |
| Operational Battery Voltage | 0.9 to 1.5 Volts |
| Specific Energy | 50 to 70 Wh/Kg |
| Energy Density | 180 to 220 Wh/L |
| Power Density | 450 to 550 W/Kg |
| Continuous Rate Capability | Typical: 3CHigh Rate: 10C |
| Pulse Rate Capability | Up to 25C |
| Cycle Life at 100% DOD | Typically 500 |
| Calendar Life | 3 – 5 years |
| Self Discharge Rate | 25% / month |
| Operable Temperature Range | -20C to 60C |
| Memory Effect | None |
Advantages
- High Volumetric And Gravimetric Energy Density
- Long Cycle Life
- Good Storage Characteristics
- No Memory Effect/voltage Depression
- Environmentally Friendly
- Slow And Rapid Charge Compatible
Disadvantages
- Overcharge / over-discharge protection needed
Typical Application
- Consumer Electronics
- Industrial Devices
- Emergency Backup Lighting
- Medical Devices
- Single Cell Applications
- Electric Vehicles